Climate normals · 1970–2000
Hillsboro Climate
Hillsboro is a city in United States (OR) with a population of about 102,347. Its average annual temperature is 11.5°C (53°F), with roughly 1103 mm of rain per year.
11.5°C
Avg Temp
1103
Precip (mm/yr)
Aug
Hottest Month
Jan
Coldest Month
Hillsboro Climate
Hillsboro has an average annual temperature of 11.5°C (53°F) and receives about 1103 mm of precipitation per year. The warmest month is August and the coldest is January. Figures are 1970–2000 climate normals.
11.5°C
Avg Temp
1103
Precip (mm/yr)
Aug
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 4° / 40° | 170 mm |
| February | 6° / 43° | 138 mm |
| March | 8° / 47° | 113 mm |
| April | 10° / 51° | 73 mm |
| May | 13° / 56° | 54 mm |
| June | 16° / 61° | 38 mm |
| July | 19° / 67° | 16 mm |
| August | 19° / 67° | 21 mm |
| September | 17° / 62° | 42 mm |
| October | 12° / 53° | 80 mm |
| November | 7° / 45° | 171 mm |
| December | 4° / 40° | 187 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Hillsboro
The most comfortable months to visit Hillsboro are typically July, August and September, when temperatures are mildest and rainfall is relatively low. The hottest month is August (around 28°C high). The coldest is January (near 1°C low). December is usually the wettest month.
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Frequently Asked Questions
The most comfortable months to visit Hillsboro are typically July, August and September, when temperatures are mildest and rainfall is relatively low (1970–2000 climate normals).
Hillsboro, United States has an average annual temperature of 11.5°C and about 1103 mm of precipitation per year. The warmest month is August and the coldest is January.
In August, the hottest month, daily highs in Hillsboro average about 28°C (82°F).
Monthly climate normals (1970–2000) sampled from WorldClim 2.1 at ~9 km resolution. Humidity derived from vapor pressure. City coordinates and population from GeoNames.